Ext.regModel('BusStationModel', {
    fields: [
        {name: 'id', type: 'int'},
        {name: 'latitude', type: 'string'},
        {name: 'longitude', type: 'string'},
        {name: 'name', type: 'string'},
        {name: 'direction', type: 'string'},
        {name: 'busses', type: 'string'} 
    ]
});